Designation:D7601−19StandardPracticeforPressureDrivenMembraneSeparationElement/BundleEvaluation1ThisstandardisissuedunderthefixeddesignationD7601;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoverstheinspection,performancetesting,autopsy,andanalyticalworkassociatedwithevaluatingpres-suredrivenmembraneseparationelements(microfiltration(MF),ultrafiltration(UF),nanofiltration(NF),andreverseosmosis(RO)).1.2Thispracticeisapplicableforelementswhennewlymanufacturedoratanytimeduringtheiroperationinawatertreatmentfacility.TheAnalyticalsection(6.4)coversonlymembranesurfaceandfoulantanalyses.1.3Thedataderivedfromthesetestsshouldbeevaluatedversusnewlymanufacturedelements/bundlesoragainstoper-atingsystemswhentheywereinitiallybroughton-stream,orboth.Industrynormscanalsobeusedforcomparativepur-poses.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1129TerminologyRelatingtoWaterD3923PracticesforDetectingLeaksinReverseOsmosisandNanofiltrationDevicesD4194TestMethodsforOperatingCharacteristicsofRe-verseOsmosisandNanofiltrationDevicesD4472GuideforRecordkeepingforReverseOsmosisandNanofiltrationSystemsD4516PracticeforStan...
